Add bin and edit workflow

bin/gems/kramdown-2.5.1/test/testcases/span/05_html/button.html

@@ -0,0 +1,7 @@
+<p><button>Some Text</button></p>
+
+<p>First some text and then a <button>here</button></p>
+
+<p><button>A button</button> and then text.</p>
+
+<p>A <button>with <strong>some</strong> <code>code</code> in <img src="image.png" alt="alt" /></button> it.</p>